Specialty Slide Rules
Click on the images' labels to display the WEBpage for that rule
Click on the images' labels to display the WEBpage for that rule
Hemmi - Frederick Post
Hemmi - Frederick Post
Pickett
Pickett
Prestolog
Prestolog
Keufell & Esser
Keufell & Esser
Aristo
Aristo
Faber-Castell
Faber-Castell
Musigraph
Musigraph
Alza-Medimmune-Ethyol
Alza-Medimmune-Ethyol
Accounting Press Inc.
Accounting Press Inc.
M.H. Mear & Co LTD
M.H. Mear & Co LTD
Concise
Concise
Perrygraf
Perrygraf
Rolab
Rolab
GUCO
GUCO
Sterling
Sterling
C-Thru Ruler Company
C-Thru Ruler Company
W & L.E. Gurley
W & L.E. Gurley
Industrial Scientific Instruments LTD.
Industrial Scientific Instruments LTD.
Wemms & Platt
Wemms & Platt
Lawrence Engineering Services
Lawrence Engineering Services
Lufkin
Lufkin
Cubic Calculator Company
Cubic Calculator Company
Random Research Inc.
Random Research Inc.
Admiralty Research Laboratory
Admiralty Research Laboratory
Rieger
Rieger
Contardo Milano
Contardo Milano
Smith Lee
Smith Lee
Ely Lilly and Company
Ely Lilly and Company
Dietzgen
Dietzgen
William H. Doring
William H. Doring
Mason Engineering
Mason Engineering
Barrows Stores Ltd.
Barrows Stores Ltd.
H.A.B. Blackwell
H.A.B. Blackwell
Taylor Instruments Corporation
Taylor Instruments Corporation
Weksler Instruments Corporation
Weksler Instruments Corporation
Honeywell
Honeywell
